[altq 360] Re: Filtering and RSVP

[Kenjiro Cho <kjc@csl.sony.co.jp>]

Antoine Gondel wrote:
> We want to set up a config in which a cntlload class is dedicated to
> RSVP-based traffic whereas the remaining resource is managed through a
> Diff-serv approach, with a CNDR on the ingress node.
> 
> If the packets belonging to a particular RSVPed flow are marked with EF
> DSCP (e.g. because they fall in the scope of the EF filter on the CDNR),
> is there a risk of conflict between the MF classification of RSVP in
> core nodes and the DS classification, and therefore, packets being
> allocated to the EF class instead the RSVP class ? 
> 
> If so, is there any walk-around but explicitely excluding this type of
> traffic from the EF filter ?

In short, dynamic filters are given preference to static filters.

Classifier filters are evaluated in the reverse order that they were
installed (unless a rule number is explicitly given).
So, when a packet matches multiple filters, it is selected by the
filter installed last.

-Kenjiro